Black Forest Labs released downloadable weights for Flux 3 Image Klein on October 15, 2026. The model supports image generation and editing. The release includes base, distilled, FP8, NVFP4 and INT8 versions. Sources: Black Forest Labs via GlobeNewswire, VentureBeat
Black Forest Labs says the model supports native 4K output, up to 10 reference images and bounding boxes for layout control. The model card lists 5.6 billion parameters for the image transformer. Sources: Black Forest Labs, Black Forest Labs via Hugging Face
Black Forest Labs says the INT8 version can run with 8GB of GPU memory. Its blog cites NVIDIA measurements of distilled generation through ComfyUI at roughly one megapixel. Generation took about four seconds on an RTX 5090 and under nine seconds on an RTX 4070. Those timings do not establish performance at 4K. Sources: Black Forest Labs
The license permits commercial output generation without a license fee for qualifying users with annual revenue under $5 million. The model card warns against assuming that permission also covers commercial fine-tuning or distribution. Sources: Black Forest Labs via GlobeNewswire, VentureBeat, Black Forest Labs via Hugging Face
Downloads from the public distilled repository require accepting conditions and sharing contact information. For editing, bounding boxes guide placement without enforcing masks, so changes can extend into surrounding content. Sources: Black Forest Labs via Hugging Face